19165100

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{4457}}^1$

素因数の和:4514

約数の個数: 36

約数和(自身を含む): 42564984

約数和(自身を除く): 23399884

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 172, 215, 430, 860, 1075, 2150, 4300, 4457, 8914, 17828, 22285, 44570, 89140, 111425, 191651, 222850, 383302, 445700, 766604, 958255, 1916510, 3833020, 4791275, 9582550, 19165100]

約数ペア:

[(1, 19165100), (2, 9582550), (4, 4791275), (5, 3833020), (10, 1916510), (20, 958255), (25, 766604), (43, 445700), (50, 383302), (86, 222850), (100, 191651), (172, 111425), (215, 89140), (430, 44570), (860, 22285), (1075, 17828), (2150, 8914), (4300, 4457)]